From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
Michal Hocko <mhocko@kernel.org>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
linux-kernel@vger.kernel.org, linux-mm <linux-mm@kvack.org>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Jan Kara <jack@suse.cz>
Subject: Re: [linux-next] kcompactd0 stuck in a CPU-burning loop
Date: Mon, 28 Jan 2019 19:51:48 +0900 [thread overview]
Message-ID: <20190128105148.GA15887@jagdpanzerIV> (raw)
In-Reply-To: <5e98c5e9-9a8a-70db-c991-a5ca9c501e83@suse.cz>
On (01/28/19 10:18), Vlastimil Babka wrote:
> On 1/28/19 9:57 AM, Sergey Senozhatsky wrote:
> > Hello,
> >
> > next-20190125
> >
> > kcompactd0 is spinning on something, burning CPUs in the meantime:
>
> Hi, could you check/add this to the earlier thread? Thanks.
>
> https://lore.kernel.org/lkml/20190126200005.GB27513@amd/T/#u
Hi,
Will reply here.
Thanks for the link, Vlastimil.
Will "test" Jan's patch (don't have a reproducer yet).
So far, I can confirm that
echo 3 > /proc/sys/vm/drop_caches
mentioned in that thread does "solve" the issue.
-ss
prev parent reply other threads:[~2019-01-28 10:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-28 8:57 Sergey Senozhatsky
2019-01-28 9:18 ` Vlastimil Babka
2019-01-28 10:51 ` Sergey Senozhatsky [this message]
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